Polarization properties of low frequency inelastic scattering by acoustic phonons in gold nanoclusters
Literature Information
A. Morresi, M. Ombelli, P. Sassi
Polarized low frequency Raman spectra (LOFIS) of gold nanoparticles supported on CeO2 and Fe2O3 catalytic matrices have been studied for two differently prepared metal oxide-gold samples. Depolarization ratios, ρS, were measured after an accurate elastic peak subtraction and a deconvolution, with a two-bands fitting function, of the whole low frequency Raman spectra of these materials. From the values of ρS measured through the ratios of the integrated areas, it seems possible to conclude that the total LOFIS envelopes are constituted by l = 2 and l = 0 surface spheroidal modes of quadrupolar and radial types respectively.
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










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